Home / 1,091,369,785.90-1,637,293,827.30-538,936,866.40

Finding the Fourth Proportional to 1,091,369,785.90, 1,637,293,827.30 and 538,936,866.40

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Solution

The fourth proportional to 1,091,369,785.90, 1,637,293,827.30 and 538,936,866.40 is: 808,523,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,369,785.90 : 1,637,293,827.30 = 538,936,866.40 : x
  2. Step 2: Convert to fraction form
    1,091,369,785.90/1,637,293,827.30 = 538,936,866.40/x
  3. Step 3: Cross multiply
    1,091,369,785.90x = 1,637,293,827.30 × 538,936,866.40
  4. Step 4: Simplify right side
    1,091,369,785.90x = 882,398,004,661,124,736
  5. Step 5: Solve for x
    x = 882,398,004,661,124,736/1,091,369,785.90
  6. Step 6: Final answer
    x = 808,523,395.15

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.